Machine tool



NOV. 14, 1933. v Q A K L 1,935,007

MACHINE TOOL Filed March 18, 1932 4 Sheets-Shet 1 HTTOlQ/VEYJ 1933- c. A. BICKEL 1,935,007

MACHINE TOOL Filed March 18. 1952 4 Sheets-Sheet 2 Ak n 1- Q A TTORNEYJ C. A. BICKEL MACHINE TOOL Nov. 14, 1933.

Filed March 18. 1932 4 Sheets-Sheet 3 44Z/%w. By ZPMZMQW iT/UENEYJ C. A. BICKEL Nov. 14, 1933.

MACHINE TOOL Filed March 18, 1932 4 Sheets-Sheet 4 IN ENTOR ATTORNEYJ Patented Nov. 14, 1933 I a corporationmfsflhios Applicatio grraicii isgj1933 .;.s ri luvo wawa v oiaims. (Cl;i.82 18) My dnven tiorrirelates to machine toolsfand, etti ularrte th im thodo ntroll ns th p05 iomnf 1 h: emittin 3,1;001, fat different points in, the; cycle. pf rotahian of-azworkpiece inorder to. impart :5;.aadifierentnnum erx f si f t e w rkp e en diiierentconfisurations o th i 1 v tt sagparti lariobiect of-myinv m torI 1 ider methudandqapparatus for m vin h i olw tQEQflAQIIWibhrthQIOQkSlidQ througha: vgivemnum IQ g e zz fmvclestof m v ment and of adius er e xel sr ccordin the number. of:- :-inw.a11 and outward movements tobeefiected duringa'given, retatiqmpr atworky piecegso-qas to determine the numbemf; sidesflndthe configuration of the sides 1 155i )m -f rmedmnnthe1workpiece;

This; application, is coordinate with, my copending application, Serial No. 599,751; filed; March l8;1 lQBZJHLWhiCh. the complete machine is fully= descri;bed,;the present application being one zg g'formqof tool reciprocating; mechanism which is Y pplica le-t that. mac i and n h -.1 exit instance; certain advantages according to .cerv tam-typeset installation on which it may-beused.

' Ref metost edr w si. r

is atop-plan view ofthe carriage, tool...

2.5.2 ieur lide. to M 01 act in m chan sm-2: Figure a section on 3 the dine. 2 -2 of. Figs ure 1;

Figure 3 is a diagrammatic view of the several seigpositibnscoftthe operatinmparts showing the line of movement and the division of the paths of movement into measured steps;

Figure 4 is atop plan view, partially in section of the tool slide reciprocating mechanism;

'35.; Figure 5 is a sectionon the line 55 of Fig ure 4. 1

Referring to the drawings in detail, 1 generally represents the carriage on which is mounted the cross slide 2. The relationship between the car- 4Q;.;riage andthe cross slide may be adjusted by the usual hand wheel 3, the details of which are not important in the "present instance.. 4 indicates the bed of the tool on which the carriagemoves.

Mounted upon the cross slide 2'is the intermediate slide 5 onwhich reciprocates the tool slide 6. The relationship between the tool slide 6 and theintermediate slide 5 is controlled by the hand wheel or lever 7 actuating the screw 8 on the screw shaft 9 which engages with the worm 5Q+gwheel 10 on the screw shaft 11 that is mounted in the block 12 of theintermediate slide 5 while the other end of the screw shaft is mounted within the sleeve 13 on the tool slide 6. Theshaft 9 is carried in the tool slide 6. The tool 14 is carried he-v e ckrs i dle --wh ch i r sq work. piece is;-suitab1-y;:driven-.from a. source j of; power-, not :shown -and transmits:power through the-gears- 17, 1'8 and 19. :to 1 the shaft awhich; operates -gears -.in-, the v gear -b ox 21 .-of any desired 60.;

- character so that; either; there is a. direct drive to: the. driven member,- 22; or a gear drive to the on thecasing 29,-; Thewfreeendofwthe -pitman has mounted thereonawwrist pin41'which= has thereon albearing block 41a: reciprocating between; para1-,,.

lel guideways 42(15'011 the crank.- 42 ;of the; vertie. cally disposed shaft 43,1mounted in the .bearing's 44;; On the lower :end of this shaft is mounted. an; I

- ec ent ic.-:4aearryi a.anecce tr cstraprA -ra d pitman 47. This pitman is pivoted air-.48- to-the intermediate slide 5,-.- thusimparting reciproca- 852;

tory movement to' the-tool slide so that the continuous operation of the shaft 26 will bring about an ovoid path. 7

It will be further noted that by the adjustment of the relationship of the slide 6 to the slide 5 the depth of tool out can be adjusted. By-the adjustment of the cross slide 2 through the hand wheel 3 the position of the entire mechanism including the tool with respect to the work can be adjusted. Therefore, the tool can be applied to the-work piece at any point transversely of the work piece and automatically moved away from that point while in engagement with the work piece and back again'forming a side, the number of which will depend upon the ratio of the rotation of the'work piece to the number of cycles of movementof the 1m? 10 the mechanism connected to the tool.

The purpose of this is to so vary the tool speed during the cycle of operations as to controlling the contour of the side of the work being cut.

It will be understood that I desire to comprehend within my invention such modifications as i may be necessary to adapt it tovaryingconditions and uses.

Having thus fully described my invention, what I claimas new and desire to secure by Letters Patent, is:

1. In combination, a machine tool, a carriage, a tool having a rotating spindle slide moving inwardly and outwardly on said carriage, a driving shaft driven by said spindle, a crank driven 3 thereby, a second crank, a pitman connecting said cranks and having a sliding connection with the second crank, and means to guide said pitman and means connecting said second crank to the tool slide.

2. lncombination, a machine tool, a carriage, a tool having a rotating spindle slide moving inwardly and outwardly on said carriage, a drivingshaft driven by said spindle, a crank driven thereby, a second crank, a pitman connecting said cranks and having a sliding connection-with the second crank, and means to guide said pitman and means connecting said second crank to the tool slide, said connecting means comprising an cecentric on the second crank, an eccentric strap and a pitman.

, 3. In a machinetool, a rotating spindle, a carriage, a reciprocating tool carrying slide, a'continuously operating driving means driven by said spindle adapted to reciprocate said tool slide comprising a pair of cranks, a connecting means therefor having a sliding connection with one crank,

guiding means for the connecting means, and eccentric means on one of the'cranks connected to the tool slide.

' 4. In a tool slide, a rotating spindle, reciprocating-mechanism, a pair of spaced cranks driven by said spindle, means to rotate one of the cranks, a pitman connecting said cranks and having-a sliding connection with one of said cranks, and means to pivotally support said pitman.

5. In a tool slide, a rotating spindle, reciprocating mechanism, a pair of spaced cranks driven by said spindle, means to rotate one, of the cranks, a pitman connecting said cranks and having a sliding connection with one of said cranks, means to pivotally support, said pitman, and means to guide the pivotal support of said pitman, said cranks and pivotal support being so arranged that the point of application of the pitman on the first crank travels in a circle, the point of support for the pitmantravels in a straight line and the point of support for the other end of the pitman travels in an ovoid path.

6. In combination in a mechanism for converting rotary movement into reciprocatory movement for reciprocating a machine tool slide, a rotating spindle, a crank driven by said spindle having a crank pin travelling in a circular path, a pitman mounted at one end on said crank pin, a sliding pivotal support for said pitman, means to guide said support in a straight line, a second crank having a sliding connection with a crank pin connected to the other end of the pitman, said pivotal support; being located closer to the last' than to the first, and meansto guide said pivot CLIFFORD A. BIo KELQ 

